/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package com.velocityme.entity;

import java.io.Serializable;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.ManyToOne;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;

/**
 *
 * @author rcrida
 */
@Entity
@NamedQueries({
    @NamedQuery(name="findDependantTasks",
                query="SELECT t FROM DependencyLink l, Task t WHERE l.dependencyTask = :task AND t = l.dependantTask"),
    @NamedQuery(name="findDependencyTasks",
                query="SELECT t FROM DependencyLink l, Task t WHERE l.dependantTask = :task AND t = l.dependencyTask"),
    @NamedQuery(name="findDependencyLink",
                query="SELECT l FROM DependencyLink l WHERE l.dependencyTask = :dependency AND l.dependantTask = :dependant")
})
public class DependencyLink implements Serializable {
    private static final long serialVersionUID = 1L;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @ManyToOne
    private Task dependencyTask;

    @ManyToOne
    private Task dependantTask;

    protected DependencyLink() {
    }

    public DependencyLink(Task dependencyTask, Task dependantTask) {
        this.dependencyTask = dependencyTask;
        this.dependantTask = dependantTask;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public Task getDependencyTask() {
        return dependencyTask;
    }

    public void setDependencyTask(Task dependencyTask) {
        this.dependencyTask = dependencyTask;
    }

    public Task getDependantTask() {
        return dependantTask;
    }

    public void setDependantTask(Task dependantTask) {
        this.dependantTask = dependantTask;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof DependencyLink)) {
            return false;
        }
        DependencyLink other = (DependencyLink) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "com.velocityme.entity.DependencyLink[id=" + id + "]";
    }

}
